Yes. Learn more and order exchange cylinders with our on-demand service called The Cylinder Loop here.

Since gas cylinders classify as hazardous goods, they are not meant to be thrown in the household trash. Our CO2 cylinders for home carbonation were manufactured to be refillable at specialized facilities and reused multiple times.

We recommend exchanging your empty cylinders for full ones, at a reduced price at one of our retailers offering the cylinder refill (listed in these FAQ) – or through our convenient Aarke gas cylinder exchange service.

The water will no longer become bubbly when you’re going through the usual carbonation steps. Before exchanging the empty cylinder, or putting it into the exchange box, you can double check that it is completely empty by depressing the center pin with a spoon. Any remaining CO2 will be removed then.

The food grade CO2 used in our cylinders is exclusively produced from renewable resources within the EU. This means that our CO2 comes from sources already in the eco-system, not adding unnecessary CO2 to the atmosphere. Learn more.

Yes, the Aarke CO2 gas cylinders are compatible with all Aarke carbonators and most sparkling water makers on the market that are designed for use with the standard 410-425g / 60L screw in cylinders.

Aarke gas cylinders are not compatible with SodaStream’s models that use the Quick Connect mechanism.

We are currently working hard to make our gas cylinders available for purchase and exchange at major retailers in your region. Please check back soon as we will be creating and updating the list of retailers continuously.

In the meantime, you can try the Aarke CO2 cylinder refill service called The Cylinder Loop.

One cylinder is roughly equivalent to 60 litres of sparkling water.

So, if you're regularly drinking sparkling water, the Aarke home carbonation system can reduce the size of your recycling pile by almost 100 small single use plastic bottles per cylinder.

Unfortunately, at the moment the delivery of Aarke CO2 cylinders is not available for Guernsey, Isle of Man and Jersey. Therefore, it is not currently possible to benefit from the Cylinder Loop service in these areas.